English verb conjugation
CAN CAPTION

Regular verb: caption - captioned - captioned

Affirmation

Simple form	V-ing form
I can caption you can caption he can caption we can caption you can caption they can caption	I can be captioning you can be captioning he can be captioning we can be captioning you can be captioning they can be captioning
Perfect	V-ing perfect
I can have captioned you can have captioned he can have captioned we can have captioned you can have captioned they can have captioned	I can have been captioning you can have been captioning he can have been captioning we can have been captioning you can have been captioning they can have been captioning

Negation

Simple form	V-ing form
I can't caption you can't caption he can't caption we can't caption you can't caption they can't caption	I can't be captioning you can't be captioning he can't be captioning we can't be captioning you can't be captioning they can't be captioning
Perfect	V-ing perfect
I can't have captioned you can't have captioned he can't have captioned we can't have captioned you can't have captioned they can't have captioned	I can't have been captioning you can't have been captioning he can't have been captioning we can't have been captioning you can't have been captioning they can't have been captioning

Interrogative form

Simple form	V-ing form
can I caption? can you caption? can he caption? can we caption? can you caption? can they caption?	can I be captioning? can you be captioning? can he be captioning? can we be captioning? can you be captioning? can they be captioning?
Perfect	V-ing perfect
can I have captioned? can you have captioned? can he have captioned? can we have captioned? can you have captioned? can they have captioned?	can I have been captioning? can you have been captioning? can he have been captioning? can we have been captioning? can you have been captioning? can they have been captioning?

Interro-negative form

Simple form	V-ing form
can't I caption? can't you caption? can't he caption? can't we caption? can't you caption? can't they caption?	can't I be captioning? can't you be captioning? can't he be captioning? can't we be captioning? can't you be captioning? can't they be captioning?
Perfect	V-ing perfect
can't I have captioned? can't you have captioned? can't he have captioned? can't we have captioned? can't you have captioned? can't they have captioned?	can't I have been captioning? can't you have been captioning? can't he have been captioning? can't we have been captioning? can't you have been captioning? can't they have been captioning?